Home / 8,145.48-12,192.30-7,588.20

Finding the Fourth Proportional to 8,145.48, 12,192.30 and 7,588.20

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Solution

The fourth proportional to 8,145.48, 12,192.30 and 7,588.20 is: 11,358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.48 : 12,192.30 = 7,588.20 : x
  2. Step 2: Convert to fraction form
    8,145.48/12,192.30 = 7,588.20/x
  3. Step 3: Cross multiply
    8,145.48x = 12,192.30 × 7,588.20
  4. Step 4: Simplify right side
    8,145.48x = 92,517,610.86
  5. Step 5: Solve for x
    x = 92,517,610.86/8,145.48
  6. Step 6: Final answer
    x = 11,358.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.